NEET NCERT Environmental Issues MCQs,PDFs,mock,model,sample test

Environmental Issues Mock Test-1

Question No:1

Pollution is any undesirable change in physical, chemical or biological characteristics of:

[A] Air
[B] Land
[C] Water or soil
[D] All of the above



Question No:2

Agents which cause pollution are known as:

[A] Mutants
[B] Carcinogens
[C] Pollutants
[D] Allergens



Question No:3

In which year did Government of India pass the Environment (Protection) Act to protect and improve the quality of environment (air, water and soil)?

[A] 1978
[B] 1986
[C] 1981
[D] 1987



Question No:4

What are the effects of air pollution on plants?

[A] Growth retardation
[B] Decrease in yield
[C] Premature death
[D] All of the above



Question No:5

Which system of humans and animals are affected mostly by air pollution?

[A] Respiratory system
[B] Digestive system
[C] Circulatory system
[D] Excretory system



Question No:6

Harmful effects of air pollution depends on:

[A] Concentration of pollutants
[B] Duration of exposure
[C] Type of organism
[D] All of the above



Question No:7

The most widely used and effective device fox removing particulate matter is:

[A] Arrester
[B] Scrubber
[C] Electrostatic precipitator
[D] Converters



Question No:8

ESP removes approx _____% of particulate matter present in exhaust from a thermal power plant.

[A] 60%
[B] 80%
[C] 99%
[D] 85%



Question No:9

Which is incorrect about ESP (Electrostatic Precipitator)?

[A] Corona produces electrons
[B] Collecting plates are grounded, so use to attract the charged dust particle
[C] Velocity of air between the plates must be low
[D] Electrodes wires that are maintained at hundred volts produces corona.



Question No:10

Scrubber is used to remove following gas

[A] SO2
[B] N2
[C] O2
[D] CO2



Question No:11

According to CPCB which particulate size causes greatest harm to human health?

[A] 2.5 µm
[B] 3.5µm
[C] 4.5 µm
[D] 5.2 µm



Question No:12

PM or less than that in diameter in air causes:

[A] Irritation and inflammation in lungs
[B] Damage to lungs
[C] Premature deaths
[D] All of the above



Question No:13

______ is a major cause of air pollution in metro cities

[A] Factory
[B] Automobiles
[C] Smoking
[D] Thermal power plant



Question No:14

Automobile pollution is reduced by using:

[A] Lead-free petrol or diesel
[B] Catalytic converters
[C] Both (a) and (b)
[D] None of the above



Question No:15

The metal used in catalytic converter in automobiles is:

[A] Platinum
[B] Palladium
[C] Rhodium
[D] Any of the above